Priming horn



Dec. 26, 1922.

1,439,917 q. s. SHERMAN ET AL.

PRIMING HORN. Fl LED FEB 20, 1922 2 SHEETS-SHEET 1 guiente/z Y 93:1 wg.

Dec. 26, 1922.

J. S SHERMAN ET AL. PRIMING HORN. FILED FEB. 20. 1922.

2 SHEETS-SHEET 2 hva Patented Z536, i922.

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reiterate nenn.

`.ipplicatrui filed February 20, 19522.` Serial No. 537,864.

To all whom, it may concern:

Be it linown that we, {loi-1N S. SHERMAN and ALviN Gr. SHERMAN, citizens of the United States, residing at Betroinin the county of Vlayne and State oth/iichigan, have inventedy certain new and useful lmprovements in Pruning Horns, of which" the following is a specilication.

This inventionrelates to lso-called vapor stoves and has for its objecten improved fuel and priming connectionrlhe burner used in connection with this stove is intended primarily to burn kerosene or heavy hydrocarbon. ln order to ignite kerosene it has to be vaporiZed. Heat is necessary to vaporize kerosene and this is accomplished by first priming"? the burner.

In order to prime the vaporizer it is necessary to heat this before the kerosene or heavy hydrocarbon is turned into it. This can be expeditiously done by introducing a little gasoline into the saine and igniting it. rlhis quickly heats up the vaporizer and when the kerosene or heavy hydrocarbon is turned into the vaporizer, this vaporizes and burns with a steady smokeless tlame. Ut course, aiter the burner is once started the vaporizer becomes hot and serves to vaporize the tuel oil as 'fast as it can be con-v sumed. i

lt is the object oit the present invention to provide a primingconnection which will be cheap and easy to manufacture and which will` never become clogged with dirt or other stufli'. ln prior Patents #1,149,300, Aug. 10,1915, and :tt-1,257,133, Feb. 19,'

1913, issued on the applications of Alvin G.

Sherman, there are described and claimed two priming connections, each employing a partially open funnel. Each funnel hada slip joint connection with the member into which it introduced the priming fluid. These priming connections have been quite extensively used but they have been found to be objectionable because they become clogged and for other reasons. rlhe connection shown in Patent #1,257,133 included an ordinary l" in the fuel line.,

After the fuel pipes were screwed into the T', the pipe ends overlapped the priming port and this had to be bored out by put ting a drill down through the top ot the T. lf the pipes `and l' were ever again disassembled for cleaning or otherwise, it was practically impossible to again get the hole in the pipe end to register with the priming p'ort in the 'l'.

The presenti priming connection obviates these various disadvantages by eliminating `entirely the open funnel and affording a "5 `which h e shoulders to keep the pipe ends away from the priming port. rl`h`e 'l' is combined in one casting with an elbow which takes the place oi the funnel. We call theconibined 'l' and elbow a priming horn for it very closely resembles a horn.

hig.` l is a plan view of the vaporizer rlhe burner 1s made up ci a plurality ofl composite rings a, o and c. These rings have herfs (Z sawed in one or more of the walls of the composite ring. These kerfs form air inlets to let in the air to the coin-` bustion channels e which exist between the composite rings. These lier-ts are sawed in the sides oil' the cast rings. rlhe cast rings are provided with reinforcing and spacing vertical ribs rlhese composite rings a, o and csit on a pair of channel rings'g which form the vaporizer for the burner.

These channel rings are connected so that, in priming, the {iuidor fuel oil running in the outer channel also runs into the inner channel. This much ofthe 'construction represents a well lznown type oi wicliless oil burner.

The nipple 7L is a part of the ring casting and is arranged to take the pipe z' which screws into` it and connects `with the priming horn j. This is a special casting provided with a T head adapted to take the pipe e' and also the one end of the T 7c. This 'i' 7c serves as a connection with the iuel oil main m and serves also as a valve casing. This 'l' 7c supports the needle valve n, which is controlled by the handle o, and

the end of the T 7n that screws into thc head of the lirriming T is plugged and provided with a relatively small opening which is regulated by the needle valve u. `The priming horn T is provided with a paircot shoulders w, which limit the distance the pipe z' and the yT 7n may screw into the priming horn T. Hence these pipe ends can never overlap the priming port y.

The priming` horn is a casting and is provided with a lug p on its top arranged to support a pin Q which passes through the knuckles r rolled onto the forked end oit' the lid s.. it will be seen that the 'front end of the horn is beveled ofi so that when the horn is `in place.y as shown in Fig. l, with a slight inclination this bevel is on an inclination of almost 45 degrees to the vertical. This aii'ords a suitable funnel into which the priming liquid maybe poured and also affords a suitable seat i'or the gravity lid s. This lid can be raised easily with the finger and when in its raised position it will `.nia1ntain itself (Fig. a) because oit the shoulder t between the forked or' knuckle portions striking against the top ci the lug p kafter the center of gravity oitl the lid has swung` over the vertical rising from the tulcrum of the lid. This is portrayed in Fig'. el. The priming' Huid, usually gasoline, is contained in a suitable can hn'nish'ed with the stove. This can is arranged to deliver u suitable quantity through a suitable spout. Thisnot being a part of the invention,V it is not shown. Suffice it to that it one wishes 'to start theV burner. he siinplyvlifts the gravity lid vup over the lug Q where it will stay while the operator places thespout of the can into the tunnel-like opening of the priming horn.. A. measured quantity ci priming` iiuid may then he introduced and it will'flow down through the elbow and the T `into the outer annular. vaporizing ring' and also into the inner vapori'fiing` channel. One Amay then apply'a match to it and the priming' fluid beinga self-vaporizing` fluid will ignite. This in a short time will heat up the vaporizing channel so that the needle valve 0 may be turned to allow the heavier 'fuel oil to run into the vaporizing rings.

The combined elbow and l" is aesinglc casting and supports itselll indepeiuilentlv of thestove top or frame. No slip joint is required as with the previous funnel which had to be nia-de detachable to permit cleaning. lilith the covered priming horn no cleaning should ordinarily be necessary.

that we claim is:`

l. In an oil vapor stove7 tlieconibination ot' a burner provided with a vapoi'izer, a pipe leading` into said vaporizer, a priming` horn including` a T having a pair oi" shoulders and into which the said pipe lits and is limited in its `penetration by one of said shoulders, and a -lluel oil connection sel cured to the other end of the T and limited in its penetration by the other of said shoulders7 the priming fluid port in said T entering the T head between said twolshoulders.

2. ln'an oil vapor stove7 the combination oit a` burner provided with a vaporizer, a priming horn having a connection withsaid vaporizer and provided with an outer open end formed on a bevel and havingalidsupporting lug on the top and a gravity lid Jr'ulcrumed on said lidssupporting lug and having its center of gravity adapted to be swung over the vertical .rising from said lug whereby the lid maintains itself in open position. i A Y 3. In an oil vapor stove7 the combination of a burner yprovided with a vaporizer,` a 'fuel oil main, a fuel, oilconnection between said main'and said vaporizer, and 'a priming horn connected with said fuel oil connection at an angle and turning' substantially parallel therewith. Y

4.111 an oil vapor stove, the combination ot a burner provided with a vaporizer7 a fuel oilmain, a fuel oil connection between said main and said vaporizer including a 'lj" interposed in said fuel oil connection havingl theV stem at substantially an angle therewith7 and turning land running approximately parallel withsaid fuel oil connection.

5. ln an oil vapor stove, the combination ot a burner provided with a vaporizer, ra prilning horn connected therewith and provided with an outer beveled end, and alid actine` as a closure for said beveled end.

ln testimony whereof we alii); our signatures. i i Y JOHN S. SllERllif/XN. Alai/TIN (in SHERMAN. 

